Over 5 billion bridge crossings happen every single day in America.
Over 5 billion bridge crossings happen every single day in America.
The Golden Gate Bridge uses 80,000 miles of wire in its cables.
over WATER CONCORD RIVER
0.25 MI W RT 38
Parametric wireframe generated from real NBI dimensions. Drag to rotate, scroll to zoom.
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This bridge has a Fair overall condition rating of 5 out of 9. While it is not classified as structurally deficient, it shows some deterioration that is being monitored.
The bridge carries 13,000 vehicles per day and is 168 years old (reconstructed in 1961).
Its sufficiency rating of 59.8 places it below the national average of 63.6.
For travelers with bridge anxiety
This bridge may cause some awareness for travelers with bridge anxiety, but has manageable characteristics.
This bridge is 102 feet long — a quick crossing, under 5 seconds at highway speed.
An arch bridge design with some openness to the surroundings.
No height data available — likely a standard overpass height.
About 13,000 vehicles cross daily — moderate traffic, some congestion possible.
The deck is 47 feet wide with 2-3 lanes — moderate width.
This bridge crosses over water. Focus on the road ahead — the water is far below.
This comfort score is designed to help individuals with bridge anxiety plan their travel. All bridges in the National Bridge Inventory are regularly inspected and deemed safe for travel. This is not medical advice — if you experience severe anxiety, please consult a healthcare professional.
Year Built
1858
168 years old (rebuilt 1961)
Structure Type
Masonry Arch (Deck)
Total Length
102 ft
31.1 m
Deck Width
47 ft
14.4 m
Spans
2
sections between supports
Max Span
46 ft
longest unsupported section (14.0 m)
Traffic Lanes
2 lanes
Two-way traffic
Daily Traffic
13,000vehicles/day
42.64181°N, 71.30299°W
Masonry Arch (Deck)
A masonry arch bridge uses stone or brick arranged in an arch shape — one of the oldest bridge designs in the world. The arch transfers loads to the abutments through compression.
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Data from the National Bridge Inventory (NBI), maintained by the Federal Highway Administration (FHWA).
Data year: 2025. Conditions may have changed since the last inspection.
This information is provided for educational and informational purposes only. It should not be used as the sole basis for any decisions related to bridge safety or transportation planning. Always consult official sources and local authorities for the most current data.